Calibration and Troubleshooting
M370430-01 Rev F 7-11
Non-isolated Current Monitoring Calibration
Important: For maximum accuracy at a specific APG level, follow the
calibration procedure again but use the intended operating voltage level in steps
3 and 9.
To calibrate the non-isolated current monitoring:
1. Short the main output with a shunt. Connect a multimeter to
measure the voltage across the shunt.
2. Connect the voltmeter to the non-isolated current monitoring
output lines (J1.14 - J1.7).
3. Set the Current APG level to 4 V. Send the SCPI command:
SYST:COMM:APR:LEV:CURR 4
4. Set the input source as Local.
5. The SCPI command is:
SYST:REM:SOUR:CURR LOC
6. Set the main output voltage to 100% by sending the command
SOUR: VOLT <ModelVolt> or use the rotary adjust/Enter
control.
7. Turn the main output On by pressing the OUTPUT ENABLE
Main button on the front panel or send the command:
:OUTP ON
The OUTPUT ENABLE Main button will illuminate.
8. Enter interactive calibration mode by sending SCPI
command:
CAL:MON:CURR
9. Press on the terminal keys - or + to reduce or increase the
monitoring value. Adjust the monitoring value displayed on
the voltmeter that was set up in Step 1 to read as close as
possible to 4.000 V.
10. Press any key other than the + or - keys to exit from
interactive calibration mode.
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